The main function of this product is to provide safe and reliable long-endurance flight power for DJI M300 UAV up to 24 hours.
This product includes two parts: the ground end tether box and the sky end airborne power supply. The tether box integrates AC/DC DC power supply, automatic take-up and pay-off device, tether cable and intelligent control module to convert single-phase AC power of the mains, generator or mobile power supply into high-voltage power and transmit it to the airborne power supply through the tether cable. The airborne power supply can safely replace an original battery and provide constant voltage stabilization, continuous and reliable long-endurance power supply for the UAV without reducing the standard load weight. The system has the function of automatically retracting and releasing the line synchronously following the rise and fall of the UAV.
This product can be used as a tool to enable users to concentrate on flight operations without additional operations during the whole takeoff and landing flight operations.
Main features
1) It has greatly extended the operation time of UAV, and supports continuous operation for 24 hours and uninterrupted immediate secondary operation;
2) It is small in size and light in weight. It can be carried by pull rod or hand. It can be used to tie down the folding cover of the box;
3) Automatic retraction and pay-off, the whole process of UAV takeoff and landing flight does not need to operate the tether box, just concentrate on the flight operation;
4) 640W or 1280W high-power and high-intensity lighting unit can be optional, and the effective lighting area can reach more than 10000 m2;
5) Comprehensive input and output protection function, operation, fault record and data storage, support wired communication and mobile phone synchronization;
6) The two modes of tether and release can be switched freely and quickly, which greatly expands the application scenarios and functions of the DJI M300 UAV.
Tether cable
1) Material: multi-strand silver-plated copper wire, composite fluoroplastic insulation layer, high-temperature resistant copolymer sheath, high modulus tensile aviation grade fiber braid;
2) Working current: 3~5A;
3) DC resistance: 10.6 ± 0.2 Ω, 100m loop @ 20 ºC,
4) Tensile strength: ≥ 100kg, resistance to repeated retraction and release ≥ 1000 times;
5) Insulation strength: ≥ 3000Vdc, no breakdown for 1min;
6) Mooring length: 110 ± 2m (support customized line length);
7) Outer diameter: 2.6 ± 0.2mm;
8) Weight: 11.5 ± 0.5g/m.
Air module power supply
1) Input voltage: 580~810Vdc wide range input;
2) Output voltage: 52.5 ± 0.3Vdc, constant voltage output;
3) Output power: 3000W (rated long-term output), 3500W (peak value ≤ 30s);
4) Protection function
A. Input over-voltage and under-voltage protection: turn-off protection, fault elimination and self-recovery;
B. Output overcurrent protection: constant current step-down protection, fault elimination and self-recovery;
C. Output short circuit protection: output current limiting operation, fault elimination and self-recovery;
D. Output over-temperature protection: the shell temperature is 95 ± 2.5 ºC, and the cooling is self-recovery;
E. Output overvoltage protection: automatically shut down and lock, restart and power on for recovery;
5) Installation method: plug-in installation, the same as the original battery installation method, UAV and aviation box do not need any change;
6) Heat dissipation mode: external fan actively dissipates heat, and reserved air duct forced air cooling;
7) Interface: input XT60, output battery interface (UAV power supply), output XT60 (lighting power supply);
8) Size: 163*92*67 ± 0.5mm (the same size as the original battery);
9) Weight: 1.35 ± 0.1kg (replace a 1.35kg original battery safely without occupying space and weight).
Ground module
1) Input voltage: 176~300Vac @ full load output, 85~176Vac @ half load output, 50/60Hz;
2) Output voltage: 400~750Vdc adjustable, factory default 750Vdc;
3) Output power: 3500W;
4) Protection function
A. Input over-voltage and under-voltage protection: turn-off protection, fault elimination and self-recovery;
B. Output overcurrent protection: constant current step-down protection, fault elimination and self-recovery;
C. Output short circuit protection: output current limiting operation, fault elimination and self-recovery;
D. Output over-temperature protection: the shell temperature is 95 ± 2.5 ºC, and the cooling is self-recovery;
E. Output overvoltage protection: automatically shut down and lock, restart and power on for recovery;
5) Data display: 4.3 inch touch screen displays current, voltage, temperature, cable length, operation record, fault record and other data;
6) Alarm function: in case of system fault, the display screen will scroll to display fault information, and the fault warning light will flash red and beep;
7) Communication function: Modbus TCP communication (standard product has no open interface), supporting wired communication and mobile phone synchronous display;
8) Retraction speed: 0~2m/s, 10 gears adjustable;
9) Retrieving and releasing tension: the retracting and releasing tension is divided into 10 gears, which can be adjusted;
10) Working mode: passive reel out cable, active reel in cable, automatic tether cable winding, and button forced reel in;
11) Carrying transportation: support the carrying on back or hand
12) Interface: input pin socket with switch;
13) Buttons and switches: high-voltage output button, cable reel in forced button, AC input switch, alarm lamp;
14) Size: 360*280*165 ± 0.5mm (excluding knapsack components and external connectors);
15) Weight: 8.8 ± 0.3kg (including tethered cable, excluding external accessories).
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